fix Install.md

Author: wcventure

README.md

@@ -52,7 +52,7 @@ The repository mainly contains three folders: [*tool*](#tool), [*test*](#test) a
 
 ## Tool
 
-The easiest way to use PERIOD is to use Docker. We strongly recommend installing and running our tool based on Docker. If you really want to install the tool in your host system, please see [INSTALL.md](tool/INSTALL.md) for more detail.
+The easiest way to use PERIOD is to use Docker. We strongly recommend installing and running our tool based on Docker. If you really want to install the tool in your host system, please see [INSTALL.md](INSTALL.md) for more detail.
 
 
 ### Requirements
@@ -341,4 +341,4 @@ We used existing implementations of compared tools when available. Here are thei
 - IPB, IDB, DFS, PCT, Random are optimized and implemented in https://github.com/mc-imperial/sctbench.
 - ConVul can be downloaded on https://sites.google.com/site/detectconvul/.
 - UFO can be downloaded on https://github.com/parasol-aser/UFO.
-- Data Race detector: [TSAN](https://github.com/google/sanitizers), [FastTrack](https://github.com/microsoft/FastTrack), [Helgrind+](https://valgrind.org/docs/manual/hg-manual.html).
+- Data Race detector: [TSAN](https://github.com/google/sanitizers), [FastTrack](https://github.com/microsoft/FastTrack), [Helgrind+](https://valgrind.org/docs/manual/hg-manual.html).